Nut wrench



Aug; 13', 1929. J. 5. wlLLcox ET AL 1,724,540

NUT' WRENCH Filed July 2:5, 1925 Patented Aug. 13, 1929.

JULE S. WILLGOX, F SAVANNAH, GEORGIA, AND WILLIAM C. SIMPSON, OF CGLUM-I earner erran IBIA, SOUTH CAROLINA.

NUT WRENCH.

Application filed July 23,

Our invention relates to wrenches, and more particularly to nut wrenchesof the self-adjusting type, that are adapted to readily engage nuts ofvarious sizes and configurations, or even those of a smooth or roundconstruction.

The object of the invention is to so construct the same that it will besimple, durable, will have few parts, will be eflicient in operation,and can be readily handled.

In the drawings forming a part of this specification, and in which likesymbols of reference represent corresponding parts in the several viewsFigure 1 is a perspective view of the preferred form of our wrench;

Figure 2 is a detail view of the jaw portions of the same showing theinner and outer sides of the detachable portion;

Figure 3 is a detail of the parts of a modification illustrating bothsides of the detachable portion;

Figure 4: is a perspective of a further modification showing an enlargedgripping jaw and a slot for the pivot;

Figure 5 is a modification for use for a smooth nut or pipe showing aserrated edge and separable locking clutch;

Figure 6 is another modification of the gripping element similar toFigure 4, but

without the slot 16; and,

Figure 7 is a slightly modified form of Figure 6 showing the grippingsurface forming a complete section of the jaw.

In the drawings the numeral 1 represents the jaw forming loop or head orportion of the wrench for grasping the article to be operated upon; 2 achannel formed in the inner surface of the wrench; and 3 a lug or jawformed integral with the handle and adapted to rest in the channels 2,which form a bearing for the same, the jaw 3 being the same width as thejaw forming loop. When the handle is turned on its pivot the lug 3 willgrip the article which rests within the jaw l. 4 is a curved shoulderformed on the inner end of the wrench handle. 5 is a detachable side orsegment of the wrench; and 8 the handle of the same. At 9 are shownreversed views of a detachable section of the wrench-head producingextensions of the wrench sides for assembling and pivoting the wrench tothe handle; 10 perforations in the extensions forming a bearing for pin7 1925. Serial No. 45,529.

for assembling the handle and jaw; and 11 designates the limits of thecut-away wrench segment. 12 are the holes throughthe segment of thewrench and the adjacent hole of the detachable wrench extension forbinding more securely the two parts together by means of bolts, or thelike. 13 is a hole in the handle for hanging up the device.

14 is a lug on the extension or supporting member and a removablemember, and 15 curved lugs on the handle which pivot and operate inconjunction with said lug l4, lugs or protrusions 15 resting upon theupper side of lugs 14: and working thereon.

In Figure 4 are slots 16 in the extension, within which are adapted tooperate a pin 17 on the handle. 5 is the gripping extension on thewrench handle, the same operating in the cut-away portion in the jaw.This cut-away portion of the jaw permits ample movement of the grippingsurf-ace 3 of the handle, and allows reasonable play of the journal 17within theslot 16 to facilitate the operation of the gripping action.

In Figure 5 is illustrated a form adapted to operate on a smooth orround surface, the same having teeth 19, and a separable locking clutch20, by means of which it may be readily operated by opening or closingthe same, thus facilitating its use. 3 denotes the serrated extension orgripping portion of the handle, and 22 pivots. The serrated grippingportion 3 of the handle grips the nut when the handle is operated, therebeing suflicient space between said serrated portion and the lowercut-away portion of the wrench jaw.

Figure 6 illustrates a form similar to Figure 4, but without the slot inthe same.

Figure 7 shows the gripping portion of the handle forming a completesection of the jaw, and permitting a free movement of the same.

The instrument illustrated in the various of the wrench, a handleproviding a gripping head or movable jaw with a face approximately asthick as the opposing jaw of the loop, and a shank portion of lessthickness than said face, the loop or head being cut-away to receivesaid shank with its thickened jaw Within the loop or head, and meanssecuring said handle movably to said cut-out portion of the loop orhead.

2. A wrench, comprising an article inclosing' head or loop, providingone jaw of the wrench, a handle providing a gripping head or movable jawwith a lace approximately as thick as the opposing jaw of the loop, anda shank portion of less thickness than said face, the loop or head beingcut-away to receive said shank with its thickened jaw within the loop orhead, a detachable portion secured to the loop or head to lap said shankand maintain it in the cut-away portion, and means securing said handlemovably between said detachable portion and the cut-out portion of theshank or head.

3. A wrench such as defined in claim 1 in which the handle has a pivotedmovement about its securing means.

4. A wrench such as defined in claim 1 in which the handle has a slidingmovement on its securing means. I

5. A wrench such as defined in claim 1, which has both a pivotal andsliding movement.

In testimony whereof we affix our signatures.

JULE S. /VILLCOX. WILLIAM G. SIMPSON.

